Transactions
| Date | Player | Pos | Transactions |
| 9/17 | Nikita Gusev | RW | Invited to Training Camp |
| 9/6 | Denis Malgin | RW | Signed with European team ZSC Lions-Switzerland |
| 8/4 | Joseph Duszak | D | Re-Signed One-year, two-way contract |
| 7/31 | Brennan Menell | D | Signed One-year, two-way contract |
| 7/31 | Nick Ritchie | LW | Signed as Free Agent Two-year contract |
| 7/30 | Ondrej Kase | RW | Signed as Free Agent One-year contract |
| 7/29 | Pavel Gogolev | LW | Signed as Free Agent Three-year, entry-level contract |
| 7/29 | Brett Seney | LW | Signed as Free Agent One-year, two-way contract |
| 7/28 | Alex Galchenyuk | LW | Became Unrestricted Free Agent |
| 7/28 | Ben Hutton | D | Became Unrestricted Free Agent |
| 7/28 | Veini Vehvilainen | G | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 7/28 | Nic Petan | LW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 7/28 | Nick Foligno | LW | Became Unrestricted Free Agent |
| 7/28 | Zach Bogosian | D | Became Unrestricted Free Agent |
| 7/28 | Frederik Andersen | G | Became Unrestricted Free Agent |
| 7/28 | Kenny Agostino | LW | Became Unrestricted Free Agent |
| 7/28 | Joe Thornton | LW | Became Unrestricted Free Agent |
| 7/28 | Antti Suomela | C | Became Unrestricted Free Agent |
| 7/28 | Zach Hyman | RW | Became Unrestricted Free Agent |
| 7/28 | Kalle Kossila | C | Became Unrestricted Free Agent |
| 7/28 | Martin Marincin | D | Became Unrestricted Free Agent |
| 7/28 | Riley Nash | C | Became Unrestricted Free Agent |
| 7/28 | Stefan Noesen | RW | Became Unrestricted Free Agent |
| 7/28 | David Rittich | G | Became Unrestricted Free Agent |
| 7/28 | Calle Rosen | D | Became Unrestricted Free Agent |
| 7/28 | Scott Sabourin | RW | Became Unrestricted Free Agent |
| 7/28 | Joshua Ho-Sang | RW | Invited to Training Camp |
| 7/28 | Kurtis Gabriel | RW | Signed as Free Agent One-year contract |
| 7/28 | Alex Biega | D | Signed as Free Agent One-year, two-way contract |
| 7/28 | Petr Mrazek | G | Signed as Free Agent Three-year contract |
| 7/28 | Michael Amadio | C | Signed as Free Agent One-year, two-way contract |
| 7/28 | David Kampf | C | Signed as Free Agent Two-year contract |
| 7/28 | Michael Bunting | LW | Signed as Free Agent Two-year contract |
| 7/28 | Carl Dahlstrom | D | Signed as Free Agent One-year, two-way contract |
| 7/28 | Brennan Menell | D | Traded for '22 7th-rd pick |
| 7/17 | Joseph Woll | G | Contract extended One-year, two-way contract extension |
| 7/17 | Jared McCann | LW | Traded for Filip Hallander, '23 7th-rd pick |
| 7/16 | Rodion Amirov | LW | Assigned to European Team Salavat Yulaev Ufa-KHL |
| 7/8 | Travis Dermott | D | Contract extended Two-year contract extension |
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